C04B 41/4884
Polyurethanes
Official title: {Polyurethanes; Polyisocyanates}
C04B41/4884 (Polyurethanes) appears on 71 US grants and 86 published applications in this corpus.
Search patents in C04B- Granted patents
- 71
- Published applications
- 86
- Assignees
- 69
- Inventors
- 287
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 6 |
| 2004 | 4 | 2 |
| 2005 | 2 | 2 |
| 2006 | 2 | 1 |
| 2007 | 1 | 3 |
| 2008 | 0 | 8 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 0 | 3 |
| 2012 | 0 | 0 |
| 2013 | 3 | 2 |
| 2014 | 2 | 3 |
| 2015 | 1 | 3 |
| 2016 | 0 | 2 |
| 2017 | 3 | 2 |
| 2018 | 1 | 3 |
| 2019 | 1 | 5 |
| 2020 | 7 | 6 |
| 2021 | 5 | 8 |
| 2022 | 2 | 9 |
| 2023 | 3 | 7 |
| 2024 | 4 | 1 |
| 2025 | 6 | 4 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing a printed concrete element9 Dec 2025US 12,492,152 B2METTEN Stein+Design GmbH & Co. KG
- Magnetic floor surface23 Sep 2025US 12,421,400 B2IOBAC Limited
- Concrete based composite material and method of making a structural element therefrom12 Aug 2025US 12,385,199 B2Mid-American Gunite, Inc.
- Lightweight structural concrete from recycled materials8 Jul 2025US 12,351,513 B2
- Polished lightweight structural concrete and method of formation8 Apr 2025US 12,269,772 B2
- Ceramic infill materials for synthetic turf applications4 Jun 2026US 2026/0152904 A1Carbo Ceramics Inc.
- Laminate comprising a layer of a layered mineralic material and a polyurethane layer22 Jan 2026US 2026/0022078 A1BASF SE
- Lightweight structural concrete from recycled materials2 Oct 2025US 2025/0304496 A1
- Polished lightweight structural concrete and method of formation26 Jun 2025US 2025/0206665 A1
- Laminate26 Jun 2025US 2025/0206982 A1AGC Inc.
Most cited
By later US patents
- Method for retrofitting a surface of a house or building83US 6,442,912 B1Innovative Coatings Corporation · 2002
- Water-and oil-repellency imparting urethane oligomers comprising perfluoroalkyl moieties71US 6,803,109 B23M Innovative Properties Company · 2004
- Process for sealing and/or priming concrete with aqueous polyisocyanate dispersions and the concrete obtained by this process40US 5,236,994 AMiles Inc. · 1993
- Electrically conductive, potentially adhesive composition35US 4,820,446 ACiba-Geigy Corporation · 1989
- Coating of mineral moldings with radiation-curable preparations33US 6,136,383 ABASF SE · 2000